doubts in LCD interfacing

Discussion in 'Programmer's Corner' started by lesin akbar, Dec 16, 2007.

  1. lesin akbar

    Thread Starter Active Member

    Dec 16, 2007
    30
    0
    i've interfaced a 16x2 LCD with 89C51 and it is working perfectly. but i need to know some commands for LCD.( what should i pass to acc before callig command)
    1) How to shift the cursor left and right ( i tried something and the cursor is moving, but the thing already in the display is distorted, ) I wanted to keep the display same. to use the cursor as a selection tool.

    2) how to higlight a word or a bit position in screen. ( to show which one is selected)

    3) Can i shift the display each line individually ?

    the most important thing is changing the position of the cursor, always having trouble with it.

    can any one help me out.plz
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Take a look at the information present here.

    Hope this helps you out.

    hgmjr
     
  3. lesin akbar

    Thread Starter Active Member

    Dec 16, 2007
    30
    0
    thank you for providing me such a detailed note, now im checkin it.
     
  4. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Also here is a link to the HD44780 datasheet on www.sparkfun.com. In it, you will find some information on how to manage the scroll features available in those LCD displays based on this device.

    hgmjr
     
  5. brucey

    New Member

    Jun 26, 2008
    3
    0
    One more place for you to check the datasheet on lcd moddule:

    www.pdfsea.com

    [​IMG]
     
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